Предмет: Математика, автор: hnurane2

Найдите 40% суммы натуральных чисел являющихся решениями неравенства 3+х<9 помогите!!

Ответы

Автор ответа: Аноним

3 + x < 9
x < 9 - 3
x < 6
( - ∞ ; 6 )
--------------
0 + 1 + 2 + 3 + 4 + 5 = 15 ( cумма )
0,4 * 15 = 6
Ответ 6

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